/******************************************************************************* * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you under the Apache License, Version 2.0 (the * "License"); you may not use this file except in compliance * with the License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, * software distributed under the License is distributed on an * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY * KIND, either express or implied. See the License for the * specific language governing permissions and limitations * under the License. * *******************************************************************************/ package org.apache.wink.client.handlers; import java.io.IOException; import java.io.OutputStream; import org.apache.wink.client.ClientRequest; /** * Interface for adapting the output stream */ public interface OutputStreamAdapter { /** * This method is called in order to wrap the request output stream with * another output stream to allow the manipulation of the request entity * stream. This method is called before writing the request headers to allow * the adapter to manipulate the request. * <p> * For example: * * <pre> * public OutputStream adapt(OutputStream os, ClientRequest request) throws IOException { * request.getHeaders().add("Content-Encoding", "gzip"); * return new GZIPOutputStream(os); * } * </pre> * * @param os the current request output stream * @param request the request * @return the adapted request output stream * @throws IOException */ OutputStream adapt(OutputStream os, ClientRequest request) throws IOException; }